A new Early Jurassic (ca. 183 Ma) fossil Lagerstatte from Ya Ha Tinda, Alberta, Canada

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dc.contributor.authorMartindale, Rowan C.en
dc.contributor.authorThem, Theodore R.en
dc.contributor.authorGill, Benjamin C.en
dc.contributor.authorMarroquin, Selva M.en
dc.contributor.authorKnoll, Andrew H.en
dc.contributor.departmentGeosciencesen
dc.date.accessioned2018-01-19T15:59:12Zen
dc.date.available2018-01-19T15:59:12Zen
dc.date.issued2017-03-01en
dc.description.abstractLagerstatten-deposits of exceptionally preserved fossils-offer vital insights into evolutionary history. To date, only three Konservat Lagerstatten are known from Early Jurassic marine rocks (Osteno, Posidonia Shale, and Strawberry Bank), all located in Europe. We report a new assemblage of exceptionally preserved fossils from Alberta, Canada, the first marine Konservat-Lagerstatte described from the Jurassic of North America. The Ya Ha Tinda assemblage includes articulated vertebrates (fish, ichthyosaurs), crinoids, crustaceans, brachiopods, abundant mollusks (coleoids with soft tissues, ammonites, gastropods, bivalves), wood, and microfossils. Paired bio-and chemostratigraphies show that Lagerstatte deposition occurred during the late Pliensbachian through early Toarcian, capturing the carbon isotope excursion associated with the Toarcian Oceanic Anoxic Event. Therefore, the Panthalassan Ya Ha Tinda biota is coeval with Toarcian Lagerstatten from the Tethys Ocean (Posidonia Shale and Strawberry Bank). Comparisons among these deposits permit new insights into the diversity, ecology, and biogeography of Jurassic marine communities during a time of pronounced biological and environmental change (e.g., expanded subsurface anoxia, warming, and extinctions). They also highlight the possibility that Mesozoic Oceanic Anoxic Events are temporal foci of exceptional preservation.en
dc.description.versionPublished versionen
dc.format.extent255 - 258 (4) page(s)en
dc.identifier.doihttps://doi.org/10.1130/G38808.1en
dc.identifier.eissn1943-2682en
dc.identifier.issn0091-7613en
dc.identifier.issue3en
dc.identifier.orcidGill, BC [0000-0001-7402-0811]en
dc.identifier.urihttp://hdl.handle.net/10919/81874en
dc.identifier.volume45en
dc.languageEnglishen
dc.publisherGeological Society of Americaen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000396125100015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.holderThe Author(s)en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectGeologyen
dc.subjectOCEANIC ANOXIC EVENTen
dc.subjectBRITISH-COLUMBIAen
dc.subjectFERNIE FORMATIONen
dc.subjectNORTH-AMERICAen
dc.subjectTEUTHID SQUIDen
dc.subjectTOARCIANen
dc.subjectEXTINCTIONen
dc.subjectDECAYen
dc.subjectFOSSILIZATIONen
dc.subjectPRESERVATIONen
dc.titleA new Early Jurassic (ca. 183 Ma) fossil Lagerstatte from Ya Ha Tinda, Alberta, Canadaen
dc.title.serialGeologyen
dc.typeArticle - Refereeden
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Scienceen
pubs.organisational-group/Virginia Tech/Science/COS T&R Facultyen
pubs.organisational-group/Virginia Tech/Science/Geosciencesen

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